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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Discrete and Continuous Models and Applied Computational Science</journal-id><journal-title-group><journal-title xml:lang="en">Discrete and Continuous Models and Applied Computational Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Discrete and Continuous Models and Applied Computational Science</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-4670</issn><issn publication-format="electronic">2658-7149</issn><publisher><publisher-name xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">32204</article-id><article-id pub-id-type="doi">10.22363/2658-4670-2022-30-3-231-243</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Application of the method of continued boundary conditions to the solution of the problems of wave diffraction on various types of scatterers with complex structure</article-title><trans-title-group xml:lang="ru"><trans-title>Применение метода продолженных граничных условий к решению задач дифракции на различных типах частиц сложной структуры</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5100-3007</contrib-id><name-alternatives><name xml:lang="en"><surname>Krysanov</surname><given-names>Dmitry V.</given-names></name><name xml:lang="ru"><surname>Крысанов</surname><given-names>Д. В.</given-names></name></name-alternatives><bio xml:lang="en"><p>postgraduate student of Department of Probability Theory and Applied Mathematics</p></bio><email>d.v.krysanov@mtuci.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow Technical University of Communications and Informatics</institution></aff><aff><institution xml:lang="ru">Московский технический университет связи и информатики</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-10-05" publication-format="electronic"><day>05</day><month>10</month><year>2022</year></pub-date><volume>30</volume><issue>3</issue><issue-title xml:lang="en">VOL 30, NO3 (2022)</issue-title><issue-title xml:lang="ru">ТОМ 30, №3 (2022)</issue-title><fpage>231</fpage><lpage>243</lpage><history><date date-type="received" iso-8601-date="2022-10-05"><day>05</day><month>10</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Krysanov D.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Крысанов Д.В.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Krysanov D.V.</copyright-holder><copyright-holder xml:lang="ru">Крысанов Д.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/miph/article/view/32204">https://journals.rudn.ru/miph/article/view/32204</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The article considers the application of the method of continued boundary conditions to the two-dimensional problem of diffraction of electromagnetic waves by a dielectric body with a cross section of complex geometry and to the problem of diffraction by a Janus sphere in the form of a permeable sphere partially covered by an absolutely soft or an absolutely rigid spherical screen. The results of calculating the scattering pattern for a large set of bodies of different geometry, including fractal-like scatterers, are obtained. It is illustrated that in the case of a smooth body boundary, the algorithm based on the Fredholm equations of the 1st kind makes it possible to obtain results with greater accuracy than for equations of the 2nd kind. The correctness of the method was confirmed by verifying the implementation of the optical theorem for various bodies and by comparing with the results of calculations obtained by other methods.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">В статье рассмотрено применение метода продолженных граничных условий к двумерной задаче дифракции электромагнитных волн на диэлектрическом теле с поперечным сечением сложной геометрии и к задаче дифракции на сфере Януса в виде проницаемого шара, частично покрытого абсолютно мягким или абсолютно жёстким сферическим экраном. Получены результаты расчёта диаграммы рассеяния для большого набора тел разной геометрии, в том числе фракталоподобных рассеивателей. Проиллюстрировано, что в случае гладкой границы тела алгоритм на основе уравнений Фредгольма 1-го рода позволяет получать результаты с большей точностью, чем для уравнений 2-го рода. Корректность метода подтверждена при помощи проверки выполнения оптической теоремы для различных тел и путём сравнения с результатами расчётов, полученных другими методами.</p></trans-abstract><kwd-group xml:lang="en"><kwd>the method of continued boundary conditions</kwd><kwd>diffraction of waves on bodies of complex geometry</kwd><kwd>Janus sphere</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метод продолженных граничных условий</kwd><kwd>дифракция волн на телах сложной геометрии</kwd><kwd>сфера Януса</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>A. G. Kyurkchan and A. P. 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